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Search: Posts Made By: gmcjetpilot
Forum: RV General Discussion/News 05-17-2019, 11:54 AM
Replies: 9
Views: 835
Posted By gmcjetpilot
I assume you are rich of peak EGT... So how far...

I assume you are rich of peak EGT... So how far rich of peak are you?

If you can you can run LOP, and get cooler CHT and better FF or MPG (but slightly slower speed). LOP is not practical unless you...
Forum: RV General Discussion/News 05-16-2019, 05:49 AM
Replies: 33
Views: 2,232
Posted By gmcjetpilot
I'm a CFI Inst Multi, 1600 dual given. I don't...

I'm a CFI Inst Multi, 1600 dual given. I don't actively teach now, but I agree a pilot should be able to hand fly without an autopilot in IMC. However dual instruction isn't really single pilot IFR....
Forum: RV General Discussion/News 05-15-2019, 01:03 PM
Replies: 33
Views: 2,232
Posted By gmcjetpilot
:eek:Had VOR/GS/LOC/MB in my old RV-4. I flew IFR...

:eek:Had VOR/GS/LOC/MB in my old RV-4. I flew IFR rarely. It came in handy a few times for IFR departure to VFR or IFR letdown through under-cast. No GPS approaches or area navigation, e.g., ATC go...
Forum: RV General Discussion/News 05-15-2019, 12:41 PM
Replies: 80
Views: 9,484
Posted By gmcjetpilot
Good points. The short length, diverging duct...

Good points. The short length, diverging duct would not add much parasitic friction. However my theory is interference (drag) from turbulent airflow swirling around cowl, acting at acute angles...
Forum: Flight Testing 05-15-2019, 12:25 PM
Replies: 3
Views: 822
Posted By gmcjetpilot
Like certified planes there are minor and major...

Like certified planes there are minor and major alterations (or repairs).

1. Does this action have significant effect on the following:
a. Weight and Balance? X
b. Structural Integrity? X
c....
Forum: RV General Discussion/News 05-15-2019, 10:11 AM
Replies: 80
Views: 9,484
Posted By gmcjetpilot
I read through the thread (ok Carl, ha ha). I...

I read through the thread (ok Carl, ha ha). I love all the innovation. There was mass thread drift but to the OP's #1 post. You have air coming out of cooler you want to promote with low pressure....
Forum: Traditional Aircraft Engines 05-14-2019, 01:44 PM
Replies: 14
Views: 1,961
Posted By gmcjetpilot
I had 2300 hours on two O-320's on my Piper PA 23...

I had 2300 hours on two O-320's on my Piper PA 23 - 160 Apache. I bought it with 1800 hours on it and flew it a lot. Compression was good when I sold it. I'd recommend doing oil sample checks just to...
Forum: Safety 05-13-2019, 09:45 AM
Replies: 53
Views: 4,182
Posted By gmcjetpilot
I have worn my chute on cross country in my RV-4....

I have worn my chute on cross country in my RV-4. Normally only put chute on for Acro, but the worst place for your chute is in the hanger when you need to bail in flight. The reason to leave behind...
Forum: RV-7/7A 05-13-2019, 09:30 AM
Replies: 6
Views: 713
Posted By gmcjetpilot
+1 no console. Angle under the panel just to...

+1 no console. Angle under the panel just to mount push pull for throttle, prop, mixture (and alt air) only takes up a few inches vertically, is OK and what I did. This gives you more room for...
Forum: RV-3 05-13-2019, 09:25 AM
Replies: 10
Views: 794
Posted By gmcjetpilot
The suspect failures were due to drilling the...

The suspect failures were due to drilling the spar chord straps and not separating them and de-bur all holes.

So all the failures were all fatigue?

Later RV-3 spars (pre-built with higher quality)...
Forum: COMM 05-11-2019, 11:29 AM
Replies: 10
Views: 1,057
Posted By gmcjetpilot
+1 on other issue than antenna ice. 3.3F or 2C...

+1 on other issue than antenna ice.

3.3F or 2C temp drop every 1000 feet. If surface was at 40F that would be possible ice in visible moisture above 2000 feet.

As far as RF propagation and ice on...
Forum: RV General Discussion/News 05-05-2019, 08:49 AM
Replies: 140
Views: 12,778
Posted By gmcjetpilot
Mandatory for FAA personel. They are the boss of...

Mandatory for FAA personel. They are the boss of you. Ha ha. You are free to ignore the fact that the FAA recognizes the Van's RV types as they do a Boeing 747. It is useful to know. If you file a...
Forum: RV General Discussion/News 05-05-2019, 03:25 AM
Replies: 140
Views: 12,778
Posted By gmcjetpilot
That's not true according to the FAA order. Van...

That's not true according to the FAA order. Van is the recognized manufacturer, and every one of the Van's Aircraft from rv-3 to rv-14 is listed in this official document. Orders and Notices are...
Forum: Traditional Aircraft Engines 05-04-2019, 04:23 PM
Replies: 69
Views: 14,439
Posted By gmcjetpilot
Interesting detonation causes crank failure. I...

Interesting detonation causes crank failure. I always thought detonation would destroy the piston first. I have first hand experience. What is the compression ratio? I see they had 8.5:1 standard;...
Forum: Probable Cause Documents Discussed 05-04-2019, 04:18 PM
Replies: 23
Views: 8,427
Posted By gmcjetpilot
Superior buys back all XP-400's back in...

Superior buys back all XP-400's back in March

http://www.aero-news.net/index.cfm?do=main.textpost&id=fd6e9f89-f631-4673-b245-5c8003e53cf4
Forum: RV-8/8A 05-04-2019, 04:03 PM
Replies: 14
Views: 2,347
Posted By gmcjetpilot
Where are you looking. Many RV's sell local, so...

Where are you looking. Many RV's sell local, so put out feelers. There are regional RV groups you might tap into.

Conventional vs Trike - As far as tail daggers go, the RV's are very docile. If you...
Forum: Nosewheel vs. Tailwheel 05-03-2019, 04:20 PM
Replies: 2
Views: 1,177
Posted By gmcjetpilot
I have read many tail dragger books and seen many...

I have read many tail dragger books and seen many videos. Been flying tail draggers for about 25 years. I saw this video recently and thought he had some, simple, easy to understand, practical...
Forum: RV General Discussion/News 05-03-2019, 03:59 PM
Replies: 14
Views: 918
Posted By gmcjetpilot
Are you interested in a Smart Coupler II for your...

Are you interested in a Smart Coupler II for your Nav Aid? It adds some flexibility to the NavAid.
Forum: Traditional Aircraft Engines 05-03-2019, 03:43 PM
Replies: 10
Views: 923
Posted By gmcjetpilot
Yep not a cold air sump. A cold air sump is not...

Yep not a cold air sump. A cold air sump is not part of the sump at all. It is a separate intake manifold that nest's under the oil sump. The intake runners to each cylinder never go in/near the oil...
Forum: Glass Cockpit 05-03-2019, 03:34 PM
Replies: 11
Views: 913
Posted By gmcjetpilot
Could be a twilight zone... do you still see your...

Could be a twilight zone... do you still see your reflection in a mirror. What year do you think it is? It could be the future....:rolleyes:
Forum: RV General Discussion/News 05-03-2019, 12:45 AM
Replies: 140
Views: 12,778
Posted By gmcjetpilot
Carl chill out. I use to work with you at Boeing...

Carl chill out. I use to work with you at Boeing in Everett. My main point is RVee (3/4/6/7/8/10/14) + N# is sufficient to ID your "experimental nature". Why? Because RV's are defined or "codified"...
Forum: RV General Discussion/News 05-02-2019, 01:58 PM
Replies: 14
Views: 918
Posted By gmcjetpilot
I just sold my beloved Garmin 196 on ebay, had...

I just sold my beloved Garmin 196 on ebay, had not used it in 10 years. GREAT GPS. I recall at past Oshkosh events, you could get it updated at the show at the Garmin booth for free or nominal...
Forum: RV General Discussion/News 05-02-2019, 01:45 PM
Replies: 140
Views: 12,778
Posted By gmcjetpilot
Oh my. Thread drift. Uncontrolled field, just N#...

Oh my. Thread drift. Uncontrolled field, just N# (maybe "red low wing").

Yes AIM and operating limitations say ID as experimental on initial call.

If you say "R-Vee" N#, it's synonymous as...
Forum: Propellers 05-02-2019, 01:17 PM
Replies: 26
Views: 4,958
Posted By gmcjetpilot
Two blades are more efficient than three. To...

Two blades are more efficient than three. To absorb higher HP and/or reduce prop diameter more blades may be needed. The Piper Cub at one time had one bladed prop, with counter weight. It was even...
Forum: RV-9/9A 04-29-2019, 12:39 PM
Replies: 18
Views: 1,080
Posted By gmcjetpilot
Why do you want a heated pitot tube, just asking....

Why do you want a heated pitot tube, just asking. Are you going IFR. You only get pitot ice in viable moisture (clouds, freezing rain) when the temperatures are below 0C. A heated pitot will add...
Forum: Traditional vs. Alternative Powerplants 04-29-2019, 11:03 AM
Replies: 4
Views: 1,104
Posted By gmcjetpilot
Viking Engines (Jan Eggenfellner)

I noticed Jan is back (since 2010 but I am slow) with Honda based conversions, but more for the lower speed end of the sport plane market.
Hummmm. I noticed the Wiki on Eggenfellner Arcraft has...
Forum: Safety 04-28-2019, 09:39 AM
Replies: 50
Views: 5,704
Posted By gmcjetpilot
The canopy breaker may be more difficult in a...

The canopy breaker may be more difficult in a frame not easier. As stated, if cockpit is full of water swinging hammer might be difficult. A powered tool like a very large center punch, with lots of...
Forum: RV-6/6A 04-26-2019, 09:11 AM
Replies: 9
Views: 1,414
Posted By gmcjetpilot
If you have some of that green paint, you can mix...

If you have some of that green paint, you can mix in abrasive and spray that area with color matched non slip surface.

When I had my RV-4 painted, we used abrasive material mixed with paint and...
Forum: Safety 04-22-2019, 11:36 AM
Replies: 50
Views: 5,704
Posted By gmcjetpilot
I did not read the whole thread or know the -10...

I did not read the whole thread or know the -10 well, so forgive. If you land upright and the aircraft is floating you will likely be able to open the door and get out. If you flip (most likely) you...
Forum: COMM 02-01-2019, 07:05 PM
Replies: 25
Views: 2,487
Posted By gmcjetpilot
Beat to death, but you are right to an...

Beat to death, but you are right to an extent.
http://www.vansairforce.com/community/showthread.php?t=75839

RG400 has less loss than RG58. RG400 loss is 9.5 dB /100ft.
RG58 loss is 14 db / 100 ft....
Forum: COMM 02-01-2019, 06:46 PM
Replies: 25
Views: 2,487
Posted By gmcjetpilot
Huh? Are you trying to be insulting, like what I...

Huh? Are you trying to be insulting, like what I said was dumb? Did I offend you? Let me ask you WHY use a TV antenna? The radials need to be about 25" long and fixed angle. Here is why a TV antenna...
Forum: COMM 01-31-2019, 02:31 PM
Replies: 25
Views: 2,487
Posted By gmcjetpilot
+1... yes TV rabbit ears (dipole) would "work" in...

+1... yes TV rabbit ears (dipole) would "work" in theory, yet NOT... One they are adjustable in length, you don't want that. You want them tuned to the VOR/ILS/LOC Freq., one length will work 25"....
Forum: RV Building Tips/Techniques 01-25-2019, 07:38 PM
Replies: 46
Views: 6,447
Posted By gmcjetpilot
What makes one think these are BETTER? Ad hype......

What makes one think these are BETTER? Ad hype... proof?

What makes one think that lock washers or star washers don't work?

A few reasons for not using the newest lock washer.
1) Inertia - In...
Forum: RV-7/7A 01-25-2019, 06:41 PM
Replies: 13
Views: 1,674
Posted By gmcjetpilot
+1 on nice work.... battleship strong? You can't...

+1 on nice work.... battleship strong? You can't be too strong with baffle mounted oil coolers. First they are heavy oil filed things with large hoses hanging off them. The OC integral flanges are...
Forum: RV General Discussion/News 01-03-2019, 03:28 PM
Replies: 15
Views: 1,445
Posted By gmcjetpilot
I did not eyeball the plane but it was online. It...

I did not eyeball the plane but it was online. It looked nice, $42K for an RV-4. It looked nice. I think it had a Dynon D-10 and mix of mechanical gauges... It had a fixed sensenich, recall 160HP... ...
Forum: RV General Discussion/News 01-03-2019, 11:07 AM
Replies: 15
Views: 2,277
Posted By gmcjetpilot
This is right up my alley. It is likely the...

This is right up my alley. It is likely the scratch is ONLY in the soft clad (almost pure aluminum) finish which is a few thousands thick.... tDrag your finger nail at right angle to the scratch....
Forum: RV General Discussion/News 01-02-2019, 04:44 PM
Replies: 39
Views: 6,519
Posted By gmcjetpilot
Dynon EFIS? That's more information displayed...

Dynon EFIS? That's more information displayed than a B757 or B767...

Need O2 at 10,000-12,000 feet more than 30 min or above 12,000. FL190 would be a must... Hypoxia makes your thinking dull and...
Forum: RV-8/8A 01-01-2019, 11:18 AM
Replies: 50
Views: 14,831
Posted By gmcjetpilot
Great question and you are right. The drag you...

Great question and you are right. The drag you talk of is called "interference drag". It is low speed air mixing with high speed air at angles. The mixing is drag. However as was said there are...
Forum: Propellers 12-29-2018, 06:42 AM
Replies: 57
Views: 13,798
Posted By gmcjetpilot
Not doubting what you are saying Sam; maybe you...

Not doubting what you are saying Sam; maybe you have some personal experience,
but the spinner is not that super critical for one reason. The blade shape near the hub,
just outside the spinner, is...
Forum: Propellers 12-29-2018, 06:21 AM
Replies: 57
Views: 13,798
Posted By gmcjetpilot
As other said or implied these prop makers were...

As other said or implied these prop makers were one man shows, hand made
props by an individual, not a corporation, typically an older gentlemen who
retired and/or passed away.

The other factor...
Forum: RV General Discussion/News 12-13-2018, 03:16 PM
Replies: 14
Views: 1,237
Posted By gmcjetpilot
I had an RV-4 and flew it for 7 years before I...

I had an RV-4 and flew it for 7 years before I sold her :( . I even flew IFR IMC... The canopy never fogged. If you are worried get some kind of electric heater you can plug into a Cig lighter...
Forum: RV General Discussion/News 12-11-2018, 03:59 PM
Replies: 30
Views: 3,191
Posted By gmcjetpilot
Well the drug runners have a few cars drive to...

Well the drug runners have a few cars drive to ends of runway and turn on the high beams.... :eek: (from what I see in the movies...)

This is not a recommendation but curiosity. I have a bunch of...
Forum: RV General Discussion/News 12-11-2018, 03:39 PM
Replies: 12
Views: 1,949
Posted By gmcjetpilot
I had one of the originals on my RV-4 (it was...

I had one of the originals on my RV-4 (it was custom made on my plane and used to make mold). It became the start of this business.... Glad to see they are continuing under new ownership...

From...
Forum: RV General Discussion/News 12-11-2018, 03:35 PM
Replies: 12
Views: 959
Posted By gmcjetpilot
What are you going to use the most (switch,...

What are you going to use the most (switch, control). Where are your hands when flying (control stick, throttle, prop, mixture, occasionally avionics/radio/nav)

Make a full sized poster board...
Forum: RV General Discussion/News 12-11-2018, 03:23 PM
Replies: 45
Views: 12,820
Posted By gmcjetpilot
This is why I am thinking going Dynon or GRT for...

This is why I am thinking going Dynon or GRT for EFIS....
Forum: Probable Cause Documents Discussed 12-09-2018, 10:11 AM
Replies: 23
Views: 8,427
Posted By gmcjetpilot
You are right but kind of missing the point......

You are right but kind of missing the point... "Engine out landing" means what? Landing with no power (idle)? We all do that for the most part every flight, as we should be at idle at or just before...
Forum: RV General Discussion/News 12-05-2018, 01:57 PM
Replies: 36
Views: 3,446
Posted By gmcjetpilot
Ha ha ha ha... Bill I tried to send PM but your...

Ha ha ha ha...

Bill I tried to send PM but your inbox is full. Sent email. Hope you get it. Thanks
Forum: RV General Discussion/News 12-04-2018, 05:19 AM
Replies: 23
Views: 1,326
Posted By gmcjetpilot
Hi-Loks are very expensive fasteners and have...

Hi-Loks are very expensive fasteners and have specific collars. They come in titanium, steel and high strength and high temperature nickle alloys. They are again not cheap. If you have the part...
Forum: RV-7/7A 12-04-2018, 12:50 AM
Replies: 7
Views: 1,174
Posted By gmcjetpilot
What Airplane do you have? Model and tail dragger...

What Airplane do you have? Model and tail dragger or tricycle gear?

I had metal on my first RV-4 and the big difference is they are not as aerodynamic, not as wide, narrow chord. Never had a lick...
Forum: RV General Discussion/News 12-03-2018, 04:20 PM
Replies: 36
Views: 3,446
Posted By gmcjetpilot
Dave I am in the same boat. Folks are being kind...

Dave I am in the same boat. Folks are being kind of harsh... if you can't say something nice or helpful don't..... Ha ha. You are doing good. My 1958 PA-23-160 (Piper Apache Twin) had metal plenums!...
Forum: RV-4 11-29-2018, 08:51 PM
Replies: 473
Views: 296,016
Posted By gmcjetpilot
Got to chime in on prop gov oil line. That thing...

Got to chime in on prop gov oil line. That thing is very critical.
If it fails you loose all your oil. So make sure you:


Use new stainless steel line (hard line or flexiable line is an option)
...
Forum: RV-7/7A 11-29-2018, 08:32 PM
Replies: 7
Views: 967
Posted By gmcjetpilot
I just came to understand why some LED's suck up...

I just came to understand why some LED's suck up current initially, when turned on. Many LED lights have a dedicated power supply, driving the LED(s). The power supply can draw a high current...
Forum: RV Photo/Video URLs 11-26-2018, 08:53 PM
Replies: 5
Views: 1,712
Posted By gmcjetpilot
So what LOM engine is this? Do you have M332C...

So what LOM engine is this?

Do you have M332C supercharged version:
http://www.pistovemotory.cz/en/m332a-m332ak-m332c

OR do you have

Walter-LOM M332B
160 HP, 4 cylinder
Forum: RV General Discussion/News 11-24-2018, 04:48 PM
Replies: 49
Views: 6,428
Posted By gmcjetpilot
Not to get into Fuse vs CB argument, but I am old...

Not to get into Fuse vs CB argument, but I am old school. I have a fancy 50 amp Circuit breaker in the panel, I can pull or reset. Would I reset it if it tripped ? Likely not. However I could pull it...
Forum: ADS-B 11-23-2018, 08:30 PM
Replies: 120
Views: 22,078
Posted By gmcjetpilot
People are "heads down" focused on their glass,...

People are "heads down" focused on their glass, can lose the art of scanning for traffic and situational awareness. ADS-B "IN" is a wonderful thing, but sole over reliance on it for traffic avoidance...
Forum: RV General Discussion/News 11-22-2018, 04:08 PM
Replies: 49
Views: 8,744
Posted By gmcjetpilot
Great stuff. RV7Guy good criterion, airport...

Great stuff.

RV7Guy good criterion, airport near shopping & restaurants (not too rural/remote).
Florida comes up often for many (weather) reasons. Hard to go too wrong.
Love South West high...
Forum: RV General Discussion/News 11-22-2018, 03:26 PM
Replies: 5
Views: 1,090
Posted By gmcjetpilot
What did you buy specifically? I am looking at...

What did you buy specifically? I am looking at the single MR15 sized light...
Forum: RV General Discussion/News 11-21-2018, 05:22 PM
Replies: 49
Views: 8,744
Posted By gmcjetpilot
r

The thread got hijacked a little with Texas, but can we please keep it general

Thank you for the great detailed post... Just what I was looking for,
personal experience or specific air parks you...
Forum: Propellers 11-20-2018, 03:41 PM
Replies: 4
Views: 1,044
Posted By gmcjetpilot
Good Info. Hartzell has STC's to replace the...

Good Info. Hartzell has STC's to replace the older F7666 prop blade with the F7497 (Mooney, Piper...). This is for stock certified 180 and 200 HP engines with magnetos. 200HP IO-360's have counter...
Forum: Propellers 11-20-2018, 12:28 PM
Replies: 4
Views: 1,044
Posted By gmcjetpilot
Thanks for the correction and clarification. This...

Thanks for the correction and clarification. This is what Hartzell sent me:

New Hartzell "Blended Airfoil" HC-(C,F,M)2YR-1(B)FP/F7497 Prop Recommended For Lycoming O-360-A1(A, C, D, F, G, H, P) and...
Forum: RV General Discussion/News 11-19-2018, 11:09 PM
Replies: 49
Views: 8,744
Posted By gmcjetpilot
Best Place to Retire and Airport Fly-In Communities

Any one have an opinion? I'm about 10 years from the final approach to the retirement fix, but want to start planning. I'd love living at an airport community or shared private strip.

I always...
Forum: Propellers 11-19-2018, 12:56 PM
Replies: 4
Views: 1,044
Posted By gmcjetpilot
Hartzell Blended Airfoil Blade 7496 vs New 7497 Performance & Limitations

The BA prop came out about 2003 and has restrictions of RPM and/or MP, as noted in Vans Information and notices March 2003. This was blade 7496.

The new BA blade is 7497. This newer design was a...
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